I found some stamps in an envelope being used as a bookmark.
The dogs were issued in 1979 and represent the four countries of the UK. From left to right: West Highland Terrier (11p); Welsh Springer Spaniel (10½p); Old English Sheepdog (9p); Irish Setter (13p). Combined value 87p. Maybe I can afford to send one letter now?
I'm not sure of the exact
date and significance of the stamps from the Netherlands. I'll leave that to Dutch readers.
@crosswordman the Dutch one on the right side is to celebrate the first election for the European Parliament with the countries who join this election
@crosswordman the Dutch one on the left is from the Unie of Utrecht which was an agreement between Dutch regions to kick the Spanish out of the Netherlands in 1579